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-rw-r--r--qemu/roms/ipxe/src/crypto/sha1.c276
1 files changed, 0 insertions, 276 deletions
diff --git a/qemu/roms/ipxe/src/crypto/sha1.c b/qemu/roms/ipxe/src/crypto/sha1.c
deleted file mode 100644
index 51866f4b7..000000000
--- a/qemu/roms/ipxe/src/crypto/sha1.c
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@@ -1,276 +0,0 @@
-/*
- * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- * You can also choose to distribute this program under the terms of
- * the Unmodified Binary Distribution Licence (as given in the file
- * COPYING.UBDL), provided that you have satisfied its requirements.
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-/** @file
- *
- * SHA-1 algorithm
- *
- */
-
-#include <stdint.h>
-#include <string.h>
-#include <byteswap.h>
-#include <assert.h>
-#include <ipxe/rotate.h>
-#include <ipxe/crypto.h>
-#include <ipxe/asn1.h>
-#include <ipxe/sha1.h>
-
-/** SHA-1 variables */
-struct sha1_variables {
- /* This layout matches that of struct sha1_digest_data,
- * allowing for efficient endianness-conversion,
- */
- uint32_t a;
- uint32_t b;
- uint32_t c;
- uint32_t d;
- uint32_t e;
- uint32_t w[80];
-} __attribute__ (( packed ));
-
-/**
- * f(a,b,c,d) for steps 0 to 19
- *
- * @v v SHA-1 variables
- * @ret f f(a,b,c,d)
- */
-static uint32_t sha1_f_0_19 ( struct sha1_variables *v ) {
- return ( ( v->b & v->c ) | ( (~v->b) & v->d ) );
-}
-
-/**
- * f(a,b,c,d) for steps 20 to 39 and 60 to 79
- *
- * @v v SHA-1 variables
- * @ret f f(a,b,c,d)
- */
-static uint32_t sha1_f_20_39_60_79 ( struct sha1_variables *v ) {
- return ( v->b ^ v->c ^ v->d );
-}
-
-/**
- * f(a,b,c,d) for steps 40 to 59
- *
- * @v v SHA-1 variables
- * @ret f f(a,b,c,d)
- */
-static uint32_t sha1_f_40_59 ( struct sha1_variables *v ) {
- return ( ( v->b & v->c ) | ( v->b & v->d ) | ( v->c & v->d ) );
-}
-
-/** An SHA-1 step function */
-struct sha1_step {
- /**
- * Calculate f(a,b,c,d)
- *
- * @v v SHA-1 variables
- * @ret f f(a,b,c,d)
- */
- uint32_t ( * f ) ( struct sha1_variables *v );
- /** Constant k */
- uint32_t k;
-};
-
-/** SHA-1 steps */
-static struct sha1_step sha1_steps[4] = {
- /** 0 to 19 */
- { .f = sha1_f_0_19, .k = 0x5a827999 },
- /** 20 to 39 */
- { .f = sha1_f_20_39_60_79, .k = 0x6ed9eba1 },
- /** 40 to 59 */
- { .f = sha1_f_40_59, .k = 0x8f1bbcdc },
- /** 60 to 79 */
- { .f = sha1_f_20_39_60_79, .k = 0xca62c1d6 },
-};
-
-/**
- * Initialise SHA-1 algorithm
- *
- * @v ctx SHA-1 context
- */
-static void sha1_init ( void *ctx ) {
- struct sha1_context *context = ctx;
-
- context->ddd.dd.digest.h[0] = cpu_to_be32 ( 0x67452301 );
- context->ddd.dd.digest.h[1] = cpu_to_be32 ( 0xefcdab89 );
- context->ddd.dd.digest.h[2] = cpu_to_be32 ( 0x98badcfe );
- context->ddd.dd.digest.h[3] = cpu_to_be32 ( 0x10325476 );
- context->ddd.dd.digest.h[4] = cpu_to_be32 ( 0xc3d2e1f0 );
- context->len = 0;
-}
-
-/**
- * Calculate SHA-1 digest of accumulated data
- *
- * @v context SHA-1 context
- */
-static void sha1_digest ( struct sha1_context *context ) {
- union {
- union sha1_digest_data_dwords ddd;
- struct sha1_variables v;
- } u;
- uint32_t *a = &u.v.a;
- uint32_t *b = &u.v.b;
- uint32_t *c = &u.v.c;
- uint32_t *d = &u.v.d;
- uint32_t *e = &u.v.e;
- uint32_t *w = u.v.w;
- uint32_t f;
- uint32_t k;
- uint32_t temp;
- struct sha1_step *step;
- unsigned int i;
-
- /* Sanity checks */
- assert ( ( context->len % sizeof ( context->ddd.dd.data ) ) == 0 );
- linker_assert ( &u.ddd.dd.digest.h[0] == a, sha1_bad_layout );
- linker_assert ( &u.ddd.dd.digest.h[1] == b, sha1_bad_layout );
- linker_assert ( &u.ddd.dd.digest.h[2] == c, sha1_bad_layout );
- linker_assert ( &u.ddd.dd.digest.h[3] == d, sha1_bad_layout );
- linker_assert ( &u.ddd.dd.digest.h[4] == e, sha1_bad_layout );
- linker_assert ( &u.ddd.dd.data.dword[0] == w, sha1_bad_layout );
-
- DBGC ( context, "SHA1 digesting:\n" );
- DBGC_HDA ( context, 0, &context->ddd.dd.digest,
- sizeof ( context->ddd.dd.digest ) );
- DBGC_HDA ( context, context->len, &context->ddd.dd.data,
- sizeof ( context->ddd.dd.data ) );
-
- /* Convert h[0..4] to host-endian, and initialise a, b, c, d,
- * e, and w[0..15]
- */
- for ( i = 0 ; i < ( sizeof ( u.ddd.dword ) /
- sizeof ( u.ddd.dword[0] ) ) ; i++ ) {
- be32_to_cpus ( &context->ddd.dword[i] );
- u.ddd.dword[i] = context->ddd.dword[i];
- }
-
- /* Initialise w[16..79] */
- for ( i = 16 ; i < 80 ; i++ )
- w[i] = rol32 ( ( w[i-3] ^ w[i-8] ^ w[i-14] ^ w[i-16] ), 1 );
-
- /* Main loop */
- for ( i = 0 ; i < 80 ; i++ ) {
- step = &sha1_steps[ i / 20 ];
- f = step->f ( &u.v );
- k = step->k;
- temp = ( rol32 ( *a, 5 ) + f + *e + k + w[i] );
- *e = *d;
- *d = *c;
- *c = rol32 ( *b, 30 );
- *b = *a;
- *a = temp;
- DBGC2 ( context, "%2d : %08x %08x %08x %08x %08x\n",
- i, *a, *b, *c, *d, *e );
- }
-
- /* Add chunk to hash and convert back to big-endian */
- for ( i = 0 ; i < 5 ; i++ ) {
- context->ddd.dd.digest.h[i] =
- cpu_to_be32 ( context->ddd.dd.digest.h[i] +
- u.ddd.dd.digest.h[i] );
- }
-
- DBGC ( context, "SHA1 digested:\n" );
- DBGC_HDA ( context, 0, &context->ddd.dd.digest,
- sizeof ( context->ddd.dd.digest ) );
-}
-
-/**
- * Accumulate data with SHA-1 algorithm
- *
- * @v ctx SHA-1 context
- * @v data Data
- * @v len Length of data
- */
-static void sha1_update ( void *ctx, const void *data, size_t len ) {
- struct sha1_context *context = ctx;
- const uint8_t *byte = data;
- size_t offset;
-
- /* Accumulate data a byte at a time, performing the digest
- * whenever we fill the data buffer
- */
- while ( len-- ) {
- offset = ( context->len % sizeof ( context->ddd.dd.data ) );
- context->ddd.dd.data.byte[offset] = *(byte++);
- context->len++;
- if ( ( context->len % sizeof ( context->ddd.dd.data ) ) == 0 )
- sha1_digest ( context );
- }
-}
-
-/**
- * Generate SHA-1 digest
- *
- * @v ctx SHA-1 context
- * @v out Output buffer
- */
-static void sha1_final ( void *ctx, void *out ) {
- struct sha1_context *context = ctx;
- uint64_t len_bits;
- uint8_t pad;
-
- /* Record length before pre-processing */
- len_bits = cpu_to_be64 ( ( ( uint64_t ) context->len ) * 8 );
-
- /* Pad with a single "1" bit followed by as many "0" bits as required */
- pad = 0x80;
- do {
- sha1_update ( ctx, &pad, sizeof ( pad ) );
- pad = 0x00;
- } while ( ( context->len % sizeof ( context->ddd.dd.data ) ) !=
- offsetof ( typeof ( context->ddd.dd.data ), final.len ) );
-
- /* Append length (in bits) */
- sha1_update ( ctx, &len_bits, sizeof ( len_bits ) );
- assert ( ( context->len % sizeof ( context->ddd.dd.data ) ) == 0 );
-
- /* Copy out final digest */
- memcpy ( out, &context->ddd.dd.digest,
- sizeof ( context->ddd.dd.digest ) );
-}
-
-/** SHA-1 algorithm */
-struct digest_algorithm sha1_algorithm = {
- .name = "sha1",
- .ctxsize = sizeof ( struct sha1_context ),
- .blocksize = sizeof ( union sha1_block ),
- .digestsize = sizeof ( struct sha1_digest ),
- .init = sha1_init,
- .update = sha1_update,
- .final = sha1_final,
-};
-
-/** "sha1" object identifier */
-static uint8_t oid_sha1[] = { ASN1_OID_SHA1 };
-
-/** "sha1" OID-identified algorithm */
-struct asn1_algorithm oid_sha1_algorithm __asn1_algorithm = {
- .name = "sha1",
- .digest = &sha1_algorithm,
- .oid = ASN1_OID_CURSOR ( oid_sha1 ),
-};